[7p-P04-1~33] 12.3 Functional Materials and Novel Devices

[7p-P04-19] Solid-State Light-Emitting Laser Medium of Organic Single Crystals Designed with tert-butyl Addition

〇Soichiro Azuma¹, Takumi Matsuo^2,3, Shotaro Hayashi^2,3,4 (1.Grad. Eng., Kochi University. of Tech., 2.School Eng. Sci., Kochi University. of Tech., 3.Res. Inst., Kochi Univ. of Tech., 4.FOREST, JST)

Keywords:

Organic Crystals,Laser Oscillation,Optical resonance

Organic single crystals are promising candidates for photonic integrated circuits, as they can function as optical waveguides, resonators, and gain media. By introducing a tert-butyl (tBu) group into organic molecules, improved solution processability and efficient emission—through spatial separation of emissive species—can be expected. In this study, we developed and crystallized a novel molecule with a tBu group. Interestingly, the resulting crystal exhibited amplified spontaneous emission from stimulated emission processes and resonator modes along specific crystal facets, leading to successful laser oscillation from the organic crystal.